All cameras (no matter how fancy or expensive or small) have 3 main components. They are:
lens
body
viewfinder
The lens lets in light and thus an image. The body processes the image either chemically to a film (which needs to be developed later) or mechanically to a videotape, SD card or internal memory. The viewfinder lets you view the image to set up your framing & composition.
Today weʻll be working hands-on with the camera and tripod and learning proper usage.